Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/1/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/02/2025 | 07:10:07 | 70.10, 68.79 | 84.84 | 11/02/2025 | 07:11:03 | 70.10, 68.75 | 84.85 | 2.03 | 56 |
| 2 | 11/02/2025 | 08:00:48 | -69.98,-123.71 | 95.27 | 11/02/2025 | 08:00:33 | -69.99,-123.78 | 95.26 | 2.76 | 15 |
| 3 | 11/02/2025 | 08:51:20 | 69.21, 44.73 | 83.98 | 11/02/2025 | 08:50:12 | 69.23, 42.82 | 83.99 | 75.14 | 68 |
| 4 | 11/04/2025 | 23:26:57 | 70.09,-175.40 | 85.67 | 11/04/2025 | 23:27:32 | 70.12,-175.36 | 85.69 | 2.96 | 35 |
| 5 | 11/05/2025 | 00:17:38 | -69.97, -7.90 | 94.45 | 11/05/2025 | 00:17:03 | -69.95, -7.96 | 94.47 | 3.21 | 35 |
| 6 | 11/07/2025 | 14:53:15 | -70.90, 131.79 | 92.74 | 11/07/2025 | 14:54:22 | -70.81, 133.90 | 92.83 | 77.83 | 67 |
| 7 | 11/07/2025 | 15:43:45 | 70.05, -59.54 | 86.42 | 11/07/2025 | 15:44:01 | 70.04, -59.58 | 86.41 | 1.65 | 16 |
| 8 | 11/07/2025 | 16:34:26 | -69.92, 107.97 | 93.70 | 11/07/2025 | 16:33:31 | -69.94, 107.91 | 93.69 | 3.30 | 55 |
| 9 | 11/10/2025 | 07:09:51 | -70.18,-111.25 | 92.70 | 11/10/2025 | 07:11:02 | -70.17,-111.17 | 92.71 | 3.40 | 71 |
| 10 | 11/10/2025 | 08:00:34 | 70.01, 56.32 | 87.14 | 11/10/2025 | 08:00:30 | 70.00, 56.24 | 87.13 | 3.11 | 4 |
| 11 | 11/10/2025 | 08:51:14 | -69.82,-136.08 | 93.04 | 11/10/2025 | 08:50:01 | -69.84,-136.35 | 93.02 | 10.33 | 73 |
| 12 | 11/12/2025 | 23:26:39 | -70.09, 4.69 | 92.06 | 11/12/2025 | 23:27:31 | -70.10, 4.62 | 92.05 | 2.60 | 52 |
| 13 | 11/13/2025 | 00:17:23 | 69.98, 172.16 | 87.84 | 11/13/2025 | 00:16:58 | 69.98, 172.10 | 87.84 | 2.26 | 25 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/1/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/01/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8